I think creating a new Jump In event that only has cards from the latest set would be a great addition to the MTG Arena gameplay. It was done for the LotR set and I believe it was a great hit. If there's an issue with que times, they could be combined with the traditional Jump In event which includes all the current Jump In packs available.

I believe this would be a great addition as it would be a good place for new and experienced players alike to play with only the latest cards in a casual environment with a level playing field.